Date: Mon, 26 Nov 2018 17:36:58 +0000 From: Jon Chesterfield <jonathanchesterfield@...il.com> To: musl@...ts.openwall.com Subject: Re: 32-bit double and long double > > Is there a reason your target is defining double in an unuseful and > incompatible way rather than doing hard-single and soft-double? If you > have any control over the choice of ABI, I think the latter makes a > lot more sense. > I can see a few arguments for float==double, but haven't actually done that for our target yet. A common error is to write 1.0 instead of 1.0f, where the former sometimes pulls in the soft double support. Integer arguments to libm functions promote to double but I would prefer promote to 32 bit float. Arguments to variadic functions promote to double. Again I would prefer 32 bit float. Leaving long double as 64 bit, unlike in the question, means no loss of functionality relative to double == long double. Cheers Jon > Content of type "text/html" skipped
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